Easy points
When you are in challenge mode, run to the goal as if you are going to score and just pass the ball. Every time you pass the ball, you will get 30 or 40 points. Keep repeating this as much as desired.
Easy points from goalie
When the ball goes out and its a goal kick for your team,just tap the circle button gently so the guy you are passing it to gets it.You will get 30 points for this only in challenge mode.